/*
 * Copyright 2022 Richard Hughes <richard@hughsie.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */

#include "config.h"
#include "fu-config-private.h"
#include "fu-context-private.h"
#include "fu-device-private.h"
#include "fu-mtd-device.h"
#include "fu-udev-device-private.h"

typedef struct {
	FuContext *ctx;
} FuTest;

static void
fu_test_free(FuTest *self)
{
	if (self->ctx != NULL)
		g_object_unref(self->ctx);
	g_free(self);
}

G_DEFINE_AUTOPTR_CLEANUP_FUNC(FuTest, fu_test_free)

static FuMtdDevice *
fu_test_mtd_find_mtdram(FuContext *ctx, GError **error)
{
	g_autoptr(GPtrArray) mtd_files = NULL;
	g_autoptr(FuDevice) device = NULL;
	const gchar *device_file;

	mtd_files = fu_path_glob("/sys/devices/virtual/mtd", "mtd?", error);
	if (mtd_files == NULL) {
		g_prefix_error_literal(error, "no mtdram device: ");
		return NULL;
	}

	/* create device */
	device_file = g_ptr_array_index(mtd_files, 0);
	device = g_object_new(FU_TYPE_MTD_DEVICE, "context", ctx, "backend-id", device_file, NULL);
	if (!fu_device_probe(device, error))
		return NULL;
	if (g_strcmp0(fu_device_get_name(device), "mtdram test device") != 0) {
		g_set_error_literal(error,
				    FWUPD_ERROR,
				    FWUPD_ERROR_NOT_FOUND,
				    "device is not mtdram test device");
		return NULL;
	}
	fu_device_set_firmware_gtype(FU_DEVICE(device), G_TYPE_INVALID);
	if (!fu_device_open(device, error))
		return NULL;
	return FU_MTD_DEVICE(g_steal_pointer(&device));
}

static FuFirmware *
fu_test_mtd_prepare_mtdram_device(FuMtdDevice *device,
				  GType firmware_gtype,
				  const gchar *filename_xml)
{
	gboolean ret;
	gsize bufsz = fu_device_get_firmware_size_max(FU_DEVICE(device));
	g_autoptr(FuFirmware) firmware = g_object_new(firmware_gtype, NULL);
	g_autoptr(FuProgress) progress = fu_progress_new(NULL);
	g_autoptr(GBytes) blob = NULL;
	g_autoptr(GError) error = NULL;

	/* build the image */
	if (filename_xml != NULL) {
		g_autoptr(GBytes) blob_tmp = NULL;
		g_autofree gchar *filename = NULL;

		filename = g_test_build_filename(G_TEST_DIST, "tests", filename_xml, NULL);
		g_debug("loading from %s", filename);
		ret = fu_firmware_build_from_filename(firmware, filename, &error);
		g_assert_no_error(error);
		g_assert_true(ret);
		blob_tmp = fu_firmware_write(firmware, &error);
		g_assert_no_error(error);
		g_assert_nonnull(blob_tmp);
		blob = fu_bytes_pad(blob_tmp, bufsz, 0xFF);
	} else {
		g_autoptr(GByteArray) buf = g_byte_array_new();
		fu_byte_array_set_size(buf, bufsz, 0xFF);
		blob = g_bytes_new(buf->data, buf->len);
	}
	fu_firmware_set_bytes(firmware, blob);
	ret = fu_device_write_firmware(FU_DEVICE(device),
				       firmware,
				       progress,
				       FWUPD_INSTALL_FLAG_NONE,
				       &error);
	g_assert_no_error(error);
	g_assert_true(ret);

	/* success */
	fu_device_probe_invalidate(FU_DEVICE(device));
	fu_device_set_firmware_gtype(FU_DEVICE(device), firmware_gtype);
	return g_steal_pointer(&firmware);
}

static void
fu_test_mtd_device_raw_func(gconstpointer user_data)
{
	FuTest *self = (FuTest *)user_data;
	gboolean ret;
	g_autoptr(FuMtdDevice) device = NULL;
	g_autoptr(FuFirmware) firmware = NULL;
	g_autoptr(FuProgress) progress = fu_progress_new(NULL);
	g_autoptr(GBytes) fw2 = NULL;
	g_autoptr(GBytes) fw = NULL;
	g_autoptr(GError) error = NULL;

	/* find correct device */
	device = fu_test_mtd_find_mtdram(self->ctx, &error);
	if (device == NULL) {
		g_test_skip(error->message);
		return;
	}

	/* write the IFD image */
	firmware = fu_test_mtd_prepare_mtdram_device(device, FU_TYPE_FIRMWARE, NULL);
	g_assert_nonnull(firmware);
	fw = fu_firmware_get_bytes(firmware, &error);
	g_assert_no_error(error);
	g_assert_nonnull(fw);

	/* dump back */
	fu_progress_reset(progress);
	fw2 = fu_device_dump_firmware(FU_DEVICE(device), progress, &error);
	g_assert_no_error(error);
	g_assert_nonnull(fw2);

	/* verify */
	ret = fu_bytes_compare(fw, fw2, &error);
	g_assert_no_error(error);
	g_assert_true(ret);
}

static void
fu_test_mtd_device_ifd_func(gconstpointer user_data)
{
	FuTest *self = (FuTest *)user_data;
	gboolean ret;
	g_autofree gchar *str = NULL;
	g_autoptr(FuMtdDevice) device = NULL;
	g_autoptr(FuDevice) device_bios = NULL;
	g_autoptr(FuFirmware) firmware = NULL;
	g_autoptr(FuFirmware) firmware_bios = NULL;
	g_autoptr(FuProgress) progress = fu_progress_new(NULL);
	g_autoptr(GError) error = NULL;

	/* find correct device */
	device = fu_test_mtd_find_mtdram(self->ctx, &error);
	if (device == NULL) {
		g_test_skip(error->message);
		return;
	}

	/* write the IFD image */
	firmware =
	    fu_test_mtd_prepare_mtdram_device(device, FU_TYPE_IFD_FIRMWARE, "mtd-ifd.builder.xml");
	g_assert_nonnull(firmware);

	/* re-probe image */
	ret = fu_device_setup(FU_DEVICE(device), &error);
	g_assert_no_error(error);
	g_assert_true(ret);
	device_bios = fu_device_get_child_by_logical_id(FU_DEVICE(device), "bios", &error);
	g_assert_no_error(error);
	g_assert_nonnull(device_bios);

	/* just for debugging */
	str = fu_device_to_string(FU_DEVICE(device));
	g_debug("%s", str);

	/* re-write just the BIOS */
	firmware_bios = fu_firmware_get_image_by_id(firmware, "bios", &error);
	g_assert_no_error(error);
	g_assert_nonnull(device_bios);
	ret = fu_device_write_firmware(device_bios,
				       firmware_bios,
				       progress,
				       FWUPD_INSTALL_FLAG_NONE,
				       &error);
	g_assert_no_error(error);
	g_assert_true(ret);
}

static void
fu_test_mtd_device_fmap_func(gconstpointer user_data)
{
	FuTest *self = (FuTest *)user_data;
	gboolean ret;
	g_autoptr(FuMtdDevice) device = NULL;
	g_autoptr(FuFirmware) firmware = NULL;
	g_autoptr(FuProgress) progress = fu_progress_new(NULL);
	g_autoptr(GError) error = NULL;

	/* find correct device */
	device = fu_test_mtd_find_mtdram(self->ctx, &error);
	if (device == NULL) {
		g_test_skip(error->message);
		return;
	}

	/* write the FMAP image */
	firmware = fu_test_mtd_prepare_mtdram_device(device,
						     FU_TYPE_FMAP_FIRMWARE,
						     "mtd-fmap.builder.xml");
	g_assert_nonnull(firmware);

	/* re-probe image */
	ret = fu_device_setup(FU_DEVICE(device), &error);
	g_assert_no_error(error);
	g_assert_true(ret);
	g_assert_cmpstr(fu_device_get_version(device), ==, "456");

	/* re-write firmware, this time in chunks */
	ret = fu_device_set_quirk_kv(FU_DEVICE(device),
				     "MtdFmapRegions",
				     "SBOM,FMAP",
				     FU_CONTEXT_QUIRK_SOURCE_DB,
				     &error);
	g_assert_no_error(error);
	g_assert_true(ret);
	ret = fu_device_write_firmware(FU_DEVICE(device),
				       firmware,
				       progress,
				       FWUPD_INSTALL_FLAG_NONE,
				       &error);
	g_assert_no_error(error);
	g_assert_true(ret);
}

static void
fu_test_mtd_device_uswid_func(gconstpointer user_data)
{
	FuTest *self = (FuTest *)user_data;
	gboolean ret;
	g_autoptr(FuMtdDevice) device = NULL;
	g_autoptr(FuFirmware) firmware = NULL;
	g_autoptr(GError) error = NULL;

	/* find correct device */
	device = fu_test_mtd_find_mtdram(self->ctx, &error);
	if (device == NULL) {
		g_test_skip(error->message);
		return;
	}

	/* write the uSWID image */
	firmware = fu_test_mtd_prepare_mtdram_device(device,
						     FU_TYPE_USWID_FIRMWARE,
						     "mtd-uswid.builder.xml");
	g_assert_nonnull(firmware);

	/* re-probe image */
	ret = fu_device_setup(FU_DEVICE(device), &error);
	g_assert_no_error(error);
	g_assert_true(ret);
	g_assert_cmpstr(fu_device_get_version(device), ==, "456");
}

static void
fu_test_mtd_device_smbios_func(gconstpointer user_data)
{
	FuTest *self = (FuTest *)user_data;
	gboolean ret;
	g_autoptr(FuFirmware) firmware = NULL;
	g_autoptr(FuMtdDevice) device = NULL;
	g_autoptr(GError) error = NULL;

	/* find correct device */
	device = fu_test_mtd_find_mtdram(self->ctx, &error);
	if (device == NULL) {
		g_test_skip(error->message);
		return;
	}

	/* write the empty image */
	firmware = fu_test_mtd_prepare_mtdram_device(device, FU_TYPE_FIRMWARE, NULL);
	g_assert_nonnull(firmware);

	/* re-probe image */
	fu_device_add_private_flag(FU_DEVICE(device), FU_MTD_DEVICE_FLAG_SMBIOS_VERSION_FALLBACK);
	ret = fu_device_setup(FU_DEVICE(device), &error);
	g_assert_no_error(error);
	g_assert_true(ret);
	g_assert_cmpstr(fu_device_get_version(FU_DEVICE(device)), ==, "1.59");
	g_assert_cmpint(fu_device_get_version_format(FU_DEVICE(device)),
			==,
			FWUPD_VERSION_FORMAT_PAIR);
}

int
main(int argc, char **argv)
{
	gboolean ret;
	g_autofree gchar *testdatadir = NULL;
	g_autoptr(FuProgress) progress = fu_progress_new(NULL);
	g_autoptr(GError) error = NULL;
	g_autoptr(FuTest) self = g_new0(FuTest, 1);

	(void)g_setenv("G_TEST_SRCDIR", SRCDIR, FALSE);
	g_test_init(&argc, &argv, NULL);
	(void)g_setenv("FWUPD_MTD_VERBOSE", "1", TRUE);
	testdatadir = g_test_build_filename(G_TEST_DIST, "tests", NULL);
	(void)g_setenv("FWUPD_SYSFSFWDIR", testdatadir, TRUE);
	(void)g_setenv("FWUPD_SYSFSFWATTRIBDIR", testdatadir, TRUE);
	(void)g_setenv("CONFIGURATION_DIRECTORY", testdatadir, TRUE);

	/* do not save silo */
	self->ctx = fu_context_new();
	fu_config_set_basename(fu_context_get_config(self->ctx), "mtd-fwupd.conf");
	ret = fu_context_load_quirks(self->ctx, FU_QUIRKS_LOAD_FLAG_NO_CACHE, &error);
	g_assert_no_error(error);
	g_assert_true(ret);
	ret = fu_context_load_hwinfo(self->ctx, progress, FU_CONTEXT_HWID_FLAG_LOAD_CONFIG, &error);
	g_assert_no_error(error);
	g_assert_true(ret);

	g_log_set_fatal_mask(NULL, G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL);
	g_test_add_data_func("/mtd/device{raw}", self, fu_test_mtd_device_raw_func);
	g_test_add_data_func("/mtd/device{uswid}", self, fu_test_mtd_device_uswid_func);
	g_test_add_data_func("/mtd/device{ifd}", self, fu_test_mtd_device_ifd_func);
	g_test_add_data_func("/mtd/device{fmap}", self, fu_test_mtd_device_fmap_func);
	g_test_add_data_func("/mtd/device{smbios}", self, fu_test_mtd_device_smbios_func);
	return g_test_run();
}
